The girls are running in their exercise outfits, with the boobs swaying to and fro. Arata's heart races. Everyone's having great time, and then a ghost appears in the library. Arata and the gang go to check it out, and are forcefully transported to the "Eternal Library". There they find the lost Trinity Seven!
so everyone returned to their 
rooms to study on their own.
Alle sind zum Lernen in
ihre Zimmer gegangen.
Todos habían regresado a sus habitaciones.
Todos habían regresado a sus habitaciones.
les élèves étaient retournés
dans leur chambre pour étudier.
per cui sono andati tutti 
in camera a studiare per i fatti loro.
Todo mundo voltou para 
os quartos para estudar sozinho.